In this tutorial, we learn how to erase cell phone information on a Blackberry 7290. First, go to the home page of your screen the scroll to "options" and hit okay. Now, go to "security options" and click okay again. Now, click on "general settings" and click okay, then click on okay once more, and click on "wipe handheld". You will now see a warning, and click "continue" and type in the word to confirm you want to wipe your information. It will now take a couple of minutes to wipe the information from the phone, and it will restart when you are finished!